package mode.observerMode;

/**
 *  观察者模式
 *
 */
public class ObserverPattern{

    public static void main(String[] args) {
        Subject subject = new ConcreteSubject();

        Observer obs1 = new ConcreteObserver1();
        Observer obs2 = new ConcreteObserver2();


        subject.add(obs1);
        subject.add(obs2);

        subject.notifyObservers();
    }


}
